Chair



FIG. 1 is a front view of my chair design;

FIG. 2 is a back view of my chair design;

FIG. 3 is a top view of my chair design;

FIG. 4 is a bottom view of my chair design;

FIG. 5 is a right-side view of my chair design; and,

FIG. 6 is a left-side view of my chair design. 

The ornamental design for a chair, substantially as shown and described. 